Lawn mower attachment



Patented Oct. 3, 1933 LAWN MOWER ATTACHMENT Frank B. Sullivan, Phoenix,Ariz.

Application December 1, 1931 Serial N0. 578,369

1 Claim. (C1. 56-26) This invention relates to an attachment for lawnmowers and pertains particularly to means for driving the bladesthereof.

` The primary object of the present invention "5 is to provide a motorcarrying attachment for lawn mowers which is adapted to be easily andquickly applied to any make of lawn mower and which is designed to haveits motor connected with the cutting blades of the mower.

Another object of the invention is to provide a blade driving attachmentfor lawn mowers comprising a motor carrying platform which is adapted tobe permanently mounted upon a xed portion of the mower, and novel meansfor connecting the platform with the ground engaging roller of the lawnmower to partially support the platform therefrom.

A still further object of the invention is-to provide an attachment ofthe above described character which may be inexpensively constructed andeasyv to mount in working position.

The invention will be best understood from a bearing `for the receptionof a lpivot pin4 9 l Y mountedl in the adjacent end of the, ground 'envgaging roller 10 which is located between these arms. The operatinghandle 11 to the upper end of which the cross hand grips12 are attached,(l0- is connected at its lower end with the casings 3 by the pivotedarms 13.

The present invention comprises a platform member 14 to the under sideof which are secured two or more bearing lblocks 15 which are provided65 to rest upon the brace bar 4, to which they are secured by J-bolts16, in the manner shown, or in any` other suitable manner.

In order to maintain the platform in horizontal position there issecured to the under side 7@ thereof and adjacent its rear edge, one endof each of a pair of rearwardly and downwardly curving supporting arms14a, the lower ends of .which are apertured to receive the trunnions 9consideration of the following'detailed descriptiontaken in connectionwith the accompanying drawing forming part of this specification, withthe understanding, however, thatl the invention is not conned to anystrict conformity with the Y showing of the drawing but may be changedor modied so long as such changes or modifications mark no materialdeparture from the salient features of the invention "as expressed inthe appended claim.

In the drawing:- f s Figure 1 is a view inwtop plan of a lawn mowerequipped with the device embodying the present invention; Y `Figure 2 isa sectional'view taken on the line 2 2 of Figure 1.

Referring now more particularly to the draw` correspondingpartsthroughout the several views,` the numeral 1 indicates generallyalawn mower of the usual conventional type vwhich comprises a pair of"wheel members each of whihis indicated by the numeral 2'over theinner/face of each of which is positioned acasing 3 which encloses thegear elementsof the mower. These casings are connected by the usualbrace bar 4 and they also carry therebetween the cutter blade shaft 5upon which thev blades are/supported through the medium ofthe rapidlydirected arms .6, the blades on these arms-being indicated by `thenumerals 7. t

Each of these casings 3 also has a rearwardly and downwardly directedarm 8 in which is a of the roller 10. Aits is shown, these supportingmembers 14a have their lower halves straight and disposed substantiallyvertical position and while they may be formed in several different waysit is preferred that they be made of'strap metal which is twistedsubstantially midway be- 80 tween itsl ends as shown, so that the lowerends will be arranged in the proper position to be located between anend of the roller and the arm to which the roller is attached and theAupper \end substantially horizontally disposed so as to lS5 positionagainst the under face of the platform. The platform 14 has a beltopening or slot 17 cut therethroughadjacent one endend mounted upon theplatform is an electric motor 18 of suit#- able horse-power, the shaft19 of which is pro- '-90 vided with ka pulley 20 which is locateddirectly ing wherein like numerals of reference indicate over theopening 17.

The-cutter blade carrying lshaft 5 has securedI thereto at the endnearest the motor pulley 20, a pulley 2l which is connected with themotor -95 pulley 20 by means of a suitablebelt 22.

.Mounted upon the handle /11 ofthe mower, at g a point adjacent the handgrips 12; is a switch 23 of any suitable character, which controls theflow of current through the electric cable 24 to .1100 the motor 18, itis of course, understood that this is a double cable of the usualcharacter which conveys the current tb the motor and returns it to thesource of supply, the switch being located in one side of the cableonly. The other end of 105 the double cable is provided with anysuitable claimed isz- In a lawn mower having supporting wheels in wheelframes, a cutter reel rotatably mounted between the wheels, a brace barbetween the wheel frames, a supporting roller having end trunnionsmounted in said frames and a handle yoke pivotally connected to saidframes and extending across said reel, an attachment comprising aplatform overlying said bar, means-securing said platformto the bar forsupport in a horizontal position thereon, an electric motor on saidyplatform and having a belt; pulley on its armature shaft, a pulleycarried by said cutter reel, a belt 'connecting said pulleys, anda pairof supporting members for vthe platform each consisting of a bar havinga vertical portion provided with an aperture through its lower endthrough which a roller trunnion loosely extendsand an upper portioncurved to have its free end extended be- Vneath the platform to which itis secured, said bars being disposed within said yoke and the curvedupper ends thereof permitting the free swinging of the yoke thereover.

FRANK B. SULLIVAN.

